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provide interaction with the user.
	GUI’s accept input from:
			present data to the user
			allow interaction with the application.

		allows creation of applications and applets with

GUI components.

Each version of Java for a particular operating

system has its own set of peer classes.

system.

can offer only components that are common to all the operating systems that support Java.

JFC, AWT, Swing

	Swing components can be easily extended.

javax.swing and java.awt

In an application that uses Swing classes, it is necessary to use the following statement:

In an application that uses an AWT class, it is necessary to use the following statement.

import java.awt.*;

displays a message to the user or requests input.
	A variety of dialog boxes can be displayed
user for input.
			Confirm Dialog This is a dialog box that asks

The first argument can be a reference to a graphical

component.

The second argument is the message that is to be

displayed.

Message Dialogs

	JOptionPane.QUESTION_MESSAGE
	JOptionPane.PLAIN_MESSAGE
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	The dialog boxes displayed by the

JOptionPane class are modal dialog boxes.

Input Dialogs

• An input dialog is a quick and simple way to ask the user to enter data.

Input Dialogs

showInputDialog(Component parent, Object message, String title,
int messageType)